:root{--blue:#2f7bff;--blue2:#1b4fd8;--cyan:#27d3ff;--black:#050a1a;--ink:#0b1430;--line:rgba(120,170,255,.22);--muted:#a9b8d6;--grad:linear-gradient(135deg,#2f7bff,#27d3ff)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scrollbar-gutter:stable}
body{font-family:'Vazirmatn',Tahoma,sans-serif;background:var(--black);color:#fff;line-height:1.9;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--grad);color:#041029;border:0;border-radius:999px;padding:12px 32px;font-weight:800;cursor:pointer;
  box-shadow:0 8px 28px rgba(47,123,255,.45);transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 36px rgba(39,211,255,.5)}
.btn__ic{width:.8em;height:.8em;fill:currentColor;flex:none}
.btn--sm{padding:6px 20px;font-size:14px;box-shadow:none}
.btn--outline{background:transparent;color:#fff;box-shadow:inset 0 0 0 2px var(--cyan)}.btn--outline:hover{background:rgba(39,211,255,.12);box-shadow:inset 0 0 0 2px var(--cyan)}
.header__act{display:flex;align-items:center;gap:10px}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.btn--dark{background:#050a1a;color:#fff;box-shadow:none}.btn--dark:hover{background:#0b1430;box-shadow:none}

.header{position:fixed;inset:0 0 auto 0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px clamp(16px,4vw,48px);transition:background .3s,backdrop-filter .3s,border-color .3s;border-bottom:1px solid transparent}
.header.solid{background:rgba(5,10,26,.92);border-color:var(--line)}
.logo{font-weight:900;font-size:22px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav{display:flex;gap:32px;font-size:14px;font-weight:500}
.nav a{padding-bottom:2px;border-bottom:2px solid transparent;transition:border-color .2s}
.nav a:hover{border-color:var(--cyan)}

/* ───────── هیرو ───────── */
.stage{--sp:0;position:relative;min-height:100vh;min-height:100svh;overflow:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:clamp(12px,2.6vh,30px);padding:76px 16px 64px;background:var(--black)}
.stage::after{content:"";position:absolute;inset:0;pointer-events:none;
  /* پایین هیرو نرم در رنگ اصلی صفحه محو می‌شود (بدون لبه‌ی تیز) */
  background:linear-gradient(to bottom,transparent calc(100% - clamp(160px,28vh,300px)),rgba(5,10,26,.6) calc(100% - clamp(70px,12vh,130px)),var(--black) 100%),
    radial-gradient(ellipse 100% 90% at 50% 50%,transparent 55%,rgba(2,5,15,.75) 100%)}

.bg{position:absolute;inset:0;pointer-events:none;z-index:0}
.bg__grid{position:absolute;left:0;right:0;bottom:0;height:60%;
  background-image:linear-gradient(rgba(70,130,255,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(70,130,255,.13) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:linear-gradient(to top,#000 5%,transparent 85%);mask-image:linear-gradient(to top,#000 5%,transparent 85%)}
.bg__orb{position:absolute;border-radius:50%;opacity:.55}
.bg__orb--a{width:46vmax;height:46vmax;left:-12vmax;top:-16vmax;background:radial-gradient(circle,#1d57ff,transparent 65%)}
.bg__orb--b{width:40vmax;height:40vmax;right:-14vmax;bottom:-14vmax;background:radial-gradient(circle,#13b8e8,transparent 65%)}

.giant{position:relative;z-index:1;text-align:center;font-weight:900;line-height:1.15;padding:.08em .08em;
  font-size:min(20vw,17vh,200px);
  background:linear-gradient(180deg,#fff 0%,#cfe2ff 55%,#6fb0ff 100%);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.js .giant{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
@keyframes rise{from{opacity:0;transform:translateY(20px)}}

/* ربات */
.robot{--rw:min(86vw,520px,calc(min(24vh,260px)*2.35));--u:calc(var(--rw)/100);
  position:relative;width:var(--rw);aspect-ratio:2.35/1;z-index:2}
.js .robot{animation:rise .9s .15s cubic-bezier(.2,.7,.2,1) both}

.shell{position:absolute;left:calc(var(--u)*4.5);right:calc(var(--u)*4.5);top:calc(var(--u)*8);bottom:0;border-radius:calc(var(--u)*10);
  background:linear-gradient(180deg,#26406e 0%,#122042 45%,#0a1330 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28),inset 0 -3px 0 rgba(0,0,0,.5),0 0 0 1px rgba(120,170,255,.25),
    0 0 calc(var(--u)*14) rgba(47,123,255,.35),0 calc(var(--u)*3) calc(var(--u)*7) rgba(0,0,0,.55)}
.shell::before{content:"";position:absolute;left:18%;right:18%;top:-1px;height:2px;border-radius:2px;background:linear-gradient(90deg,transparent,var(--cyan),transparent)}
.ear{position:absolute;top:calc(var(--u)*17);width:calc(var(--u)*8);height:calc(var(--u)*15);border-radius:calc(var(--u)*3);
  background:linear-gradient(180deg,#46a0ff,#1b4fd8);box-shadow:inset 0 1px 0 rgba(255,255,255,.45),0 0 calc(var(--u)*4) rgba(47,123,255,.6)}
.ear--a{left:0}.ear--b{right:0}
.ant{position:absolute;left:50%;top:0;width:calc(var(--u)*1);height:calc(var(--u)*9);transform:translateX(-50%);background:#34508a;border-radius:2px}
.ant i{position:absolute;left:50%;top:calc(var(--u)*-1.6);width:calc(var(--u)*4.4);height:calc(var(--u)*4.4);transform:translateX(-50%);border-radius:50%;background:#2a3f6e;transition:background .4s,box-shadow .4s}
.stage.on .ant i{background:var(--cyan);box-shadow:0 0 calc(var(--u)*5) var(--cyan)}

.screen{position:absolute;left:calc(var(--u)*5);right:calc(var(--u)*5);top:calc(var(--u)*4.5);bottom:calc(var(--u)*9);border-radius:calc(var(--u)*6);overflow:hidden;
  background:radial-gradient(ellipse at 50% 120%,#0d2a5c,#030814 70%);
  box-shadow:inset 0 0 0 1px rgba(120,170,255,.2),inset 0 0 calc(var(--u)*5) rgba(0,0,0,.9);display:grid;place-items:center;transition:box-shadow .5s}
.stage.on .screen{box-shadow:inset 0 0 0 1px rgba(80,170,255,.55),inset 0 0 calc(var(--u)*8) rgba(39,150,255,.3)}
.screen::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;background:repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 3px)}

.eyes{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:calc(var(--u)*10);
  transition:opacity .45s .1s,scale .55s cubic-bezier(.3,1.6,.5,1) .05s}
/* چشم‌ها هنگام نمایش متن مثل یک خط نور جمع می‌شوند و محو می‌شوند */
.stage.talk .eyes{opacity:0;scale:1 .05;transition:opacity .28s,scale .28s ease-in}
.stage.on .eyes{animation:look 5s ease-in-out .8s infinite}
@keyframes look{0%,12%{transform:translateX(0)}25%,40%{transform:translateX(14%)}55%,70%{transform:translateX(-14%)}85%,100%{transform:translateX(0)}}
.eye{width:calc(var(--u)*8);height:calc(var(--u)*10.5);border-radius:calc(var(--u)*4);background:#233a66;transform:scaleY(.08);transition:transform .6s cubic-bezier(.3,1.4,.5,1),background .4s,box-shadow .4s}
.stage.on .eye{transform:scaleY(1);background:#e8fbff;box-shadow:0 0 calc(var(--u)*4.5) var(--cyan);animation:blink 4.2s 1.6s infinite}
@keyframes blink{0%,94%,100%{transform:scaleY(1)}97%{transform:scaleY(.08)}}

.sweep{position:absolute;top:0;bottom:0;width:calc(var(--u)*14);left:50%;margin-left:calc(var(--u)*-7);opacity:0;pointer-events:none;background:linear-gradient(90deg,transparent,rgba(60,190,255,.4),transparent)}
.stage.scan .sweep{opacity:1;animation:sweep 1.8s ease-in-out infinite alternate}
@keyframes sweep{from{transform:translateX(-300%)}to{transform:translateX(300%)}}
/* برق نور هنگام تبدیل چشم ↔ متن */
.stage.flash .sweep{animation:flash .7s ease-out both}
@keyframes flash{0%{opacity:1;transform:translateX(330%)}100%{opacity:0;transform:translateX(-330%)}}

.say{position:relative;z-index:1;padding:0 calc(var(--u)*3.5);text-align:center;font-weight:700;color:#fff;font-size:max(13px,calc(var(--u)*3.3));line-height:1.65;text-wrap:balance}
.say .w{display:inline-block;opacity:0;transform:translateY(.5em) scale(.9);transition:opacity .3s,transform .3s}
.stage.talk .say .w{opacity:1;transform:none;transition-delay:calc(var(--i)*55ms + .2s)}

.leds{position:absolute;left:0;right:0;bottom:calc(var(--u)*3);display:flex;justify-content:center;gap:calc(var(--u)*2)}
.leds b{width:calc(var(--u)*8);height:calc(var(--u)*1.5);border-radius:calc(var(--u)*1);background:#25406f}
.stage.on .leds b{background:var(--cyan);box-shadow:0 0 calc(var(--u)*2.5) rgba(39,211,255,.8)}
.floor{position:absolute;left:12%;right:12%;bottom:calc(var(--u)*-6);height:calc(var(--u)*6);border-radius:50%;background:radial-gradient(ellipse,rgba(47,123,255,.55),transparent 70%);z-index:-1}

/* باکس‌های تایپ‌شونده */
.steps{position:relative;z-index:3;list-style:none;display:grid;grid-template-columns:1.5fr 1fr 1.25fr;gap:14px;width:min(100%,980px);margin-top:clamp(6px,2vh,20px)}
.step{position:relative;display:flex;align-items:center;gap:12px;min-height:60px;padding:12px 16px;border-radius:14px;
  background:linear-gradient(180deg,#10224e,#08102a);border:1px solid var(--line);
  box-shadow:0 8px 20px rgba(0,0,0,.3);
  opacity:.35;transform:translateY(8px);transition:opacity .4s,transform .4s,border-color .3s}
.step.act,.step.fin{opacity:1;transform:none}
.step.act{border-color:rgba(80,180,255,.9);box-shadow:0 0 0 1px rgba(39,211,255,.3),0 0 18px rgba(47,123,255,.4)}
.step__ic{flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:rgba(47,123,255,.18);border:1px solid rgba(100,170,255,.35)}
.step__ic svg{width:18px;height:18px;fill:none;stroke:var(--cyan);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.step.act .step__ic svg{animation:spin 2.4s linear infinite}
.step:nth-child(1).act .step__ic svg,.step:nth-child(3).act .step__ic svg{animation:none}
@keyframes spin{to{transform:rotate(360deg)}}
.step__tx{position:relative;flex:1;font-weight:700;font-size:15px;line-height:1.7;display:block}
.step__tx .ghost{visibility:hidden}
.step__tx .live{position:absolute;inset:0}
.step.act .live::after{content:"";display:inline-block;width:2px;height:1.1em;margin-inline-start:3px;vertical-align:-.15em;background:var(--cyan);animation:caret .7s steps(1) infinite}
@keyframes caret{50%{opacity:0}}
.step__ok{flex:none;width:20px;height:20px;border-radius:50%;border:1.5px solid rgba(255,255,255,.2);position:relative;transition:background .3s,border-color .3s}
.step.fin .step__ok{background:var(--grad);border-color:transparent}
.step.fin .step__ok::after{content:"";position:absolute;left:6px;top:3px;width:5px;height:9px;border:solid #041029;border-width:0 2px 2px 0;transform:rotate(45deg)}

/* بعد از کمی اسکرول */
.hero-copy{position:relative;z-index:3;max-width:480px;padding:0 8px;text-align:center;opacity:0;transform:translateY(18px);pointer-events:none;transition:opacity .45s,transform .45s}
.stage.more .hero-copy{opacity:1;transform:none;pointer-events:auto}
.hero-copy p{color:var(--muted);margin-bottom:14px;font-size:15px}

.hint{position:absolute;left:0;right:0;bottom:clamp(12px,3vh,26px);z-index:3;display:flex;flex-direction:column;align-items:center;gap:8px;font-size:13px;color:var(--muted);opacity:0;transition:opacity .5s}
.stage.ready .hint{opacity:1}
.stage.more .hint{opacity:0;pointer-events:none}
.hint__mouse{width:20px;height:32px;border:2px solid rgba(140,190,255,.7);border-radius:12px;position:relative}
.hint__mouse::after{content:"";position:absolute;left:50%;top:6px;width:3px;height:6px;margin-left:-1.5px;border-radius:2px;background:var(--cyan);animation:wheel 1.6s ease-in-out infinite;animation-play-state:paused}
.stage.ready:not(.more) .hint__mouse::after{animation-play-state:running}
@keyframes wheel{0%{opacity:0;transform:translateY(0)}30%{opacity:1}100%{opacity:0;transform:translateY(10px)}}

/* وقتی هیرو از صفحه خارج شد همه‌ی انیمیشن‌هایش متوقف می‌شود */
.stage.off *{animation-play-state:paused!important}

/* ───────── بخش‌ها ───────── */
.sec{padding:96px clamp(16px,6vw,96px);max-width:1280px;margin-inline:auto}
h2{font-size:clamp(24px,3.6vw,40px);font-weight:900;line-height:1.5;margin-bottom:36px;max-width:820px}
.sec h2{background:linear-gradient(90deg,#fff,#a9ccff);-webkit-background-clip:text;background-clip:text;color:transparent}
.grid{display:grid;gap:24px}
.grid--4{grid-template-columns:repeat(4,1fr)}
.grid--5{grid-template-columns:repeat(5,1fr)}
.card{position:relative;background:linear-gradient(180deg,rgba(18,34,78,.7),rgba(9,18,45,.8));border:1px solid var(--line);padding:26px 20px;border-radius:14px;overflow:hidden;transition:transform .3s,border-color .3s,box-shadow .3s}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--grad)}
.card:hover{transform:translateY(-4px);border-color:rgba(80,170,255,.6);box-shadow:0 14px 40px rgba(47,123,255,.25)}
.card h3{font-size:17px;margin-bottom:8px}
.card p{font-size:14px;color:var(--muted)}
.sec--split{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:center}
.sec--split p{color:var(--muted);margin-bottom:14px}
blockquote{background:var(--grad);color:#041029;padding:36px;border-radius:18px;font-size:clamp(18px,2.2vw,26px);font-weight:800;line-height:1.7;box-shadow:0 20px 60px rgba(47,123,255,.35)}
.res{border-inline-start:3px solid var(--cyan);padding:6px 16px;font-weight:500;font-size:15px;background:linear-gradient(270deg,rgba(47,123,255,.12),transparent)}
.note{margin-top:48px;color:var(--muted)}

.cta{background:radial-gradient(ellipse 80% 120% at 80% 0%,#2f7bff,transparent 60%),linear-gradient(135deg,#0d3bb5,#0a6fd1);display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center;padding:88px clamp(16px,6vw,96px)}
.cta h2{margin-bottom:14px}
.cta p{max-width:560px}
form{display:grid;gap:12px}
label{font-size:14px;display:grid;gap:4px}
input{padding:12px 14px;border:0;border-radius:10px;color:#000}
.msg{min-height:24px;font-size:14px;font-weight:700}
.footer{text-align:center;padding:24px;font-size:13px;color:var(--muted)}
.footer .btn{margin-bottom:14px}.footer p{margin:0}
.footer .enamad{margin-top:16px;display:flex;justify-content:center}.footer .enamad img{max-width:110px;height:auto}


@media(max-width:980px){
  .grid--4,.grid--5{grid-template-columns:repeat(2,1fr)}
  .sec--split,.cta{grid-template-columns:1fr}
}
@media(max-width:760px){
  .steps{grid-template-columns:1fr;gap:8px;width:min(100%,420px)}
  .step{min-height:50px;padding:8px 14px}
  .step__tx{font-size:14px}
}
@media(max-width:640px){
  .header__act .btn--sm{padding:6px 12px;font-size:13px}
  .nav{display:none}
  .grid--4,.grid--5{grid-template-columns:1fr}
  .giant{font-size:min(24vw,14vh)}
}
@media(max-height:700px){.hero-copy p{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important}.step,.stage .eye,.say .w{transition:none!important}.stage.on .eye{transform:none}}

/* پنجره‌ی ویدیو */
.modal{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:16px;opacity:0;transition:opacity .22s}
.modal[hidden]{display:none!important}
.modal.show{opacity:1}
.modal__bg{position:absolute;inset:0;background:rgba(2,6,18,.86)}
.modal__box{position:relative;width:min(100%,960px,calc((100vh - 40px)*16/9));aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:#000;
  border:1px solid var(--line);box-shadow:0 0 0 1px rgba(47,123,255,.2),0 20px 70px rgba(0,0,0,.6),0 0 60px rgba(47,123,255,.25);
  transform:translateY(14px) scale(.97);transition:transform .25s cubic-bezier(.2,.8,.2,1)}
.modal.show .modal__box{transform:none}
.modal__frame,.modal__frame video,.modal__frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0;background:#000}
.modal__x{position:absolute;top:8px;inset-inline-start:8px;z-index:2;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:rgba(5,10,26,.8);color:#fff;font-size:22px;line-height:1;cursor:pointer}
.modal__x:hover{background:var(--blue)}
.modal__empty[hidden]{display:none}
.modal__empty{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:24px;color:var(--muted);font-weight:700}
html.modal-open{overflow:hidden}